<!doctype html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <meta name="description" content="">
  <meta name="author" content="Mark Otto, Jacob Thornton, and Bootstrap contributors">
  <meta name="generator" content="Jekyll v4.1.1">
  <title>Signin Template · Bootstrap</title>
  <link rel="canonical" href="https://getbootstrap.com/docs/4.5/examples/sign-in/">

  <!-- Bootstrap core CSS -->
  <link href="../assets/dist/css/bootstrap.min.css" rel="stylesheet">

  <style>
    .leftBox {
      position:fixed;
      margin: 0;
      height: 500px;
      overflow: auto;
      width: 12%;
      /* text-align: center; */
      padding: 20px;
    }

    
    .centerBox {
      /* overflow: auto; */
      height: 500px;
      margin: 0 auto;
      display: flex;
      width: 85%;
      text-align: center;
      flex-wrap: wrap;
      margin-left: 15%;
      padding-left: 10px;
    }

    .rightBox {
      height: 300px;
      background-color: aqua;
      float: right;
      flex: 2;
    }

    .header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      display: block;
    }


    ul {
      list-style: none;
    }


    .bui-left {
      float: left;
    }

    .single-mode-lbox {
      width: 158px;
      height: 102px;
      margin-right: 16px;
    }

    .single-mode-rbox {
      height: 100%;
      overflow: hidden;
    }

    .single-mode-rbox-inner {
      display: inline-block;
      width: 100%;
      vertical-align: middle;
    }

    .title-box {
      display: block;
      font-size: 20px;
      line-height: 1.3;
      margin-bottom: 4px;
      font-weight: 700;
      max-height: 52px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .footer-bar {
      font-size: 12px;
      color: #999;
      margin-top: 10px;
    }

    .footer-bar-action, .footer-bar-left {
      display: inline-block;
      vertical-align: middle;
    }

    .footer-bar-action.media-avatar {
      color: #fff;
      margin-right: 2px;
      width: 18px;
      height: 18px;
      line-height: 18px;
      text-align: center;
      font-size: 12px;
      border-radius: 50%;
      background-color: #eee;
      overflow: hidden;
  }

  .libox{
    display: flex;
    margin-top: 20px;
    padding: 10px;
    border-bottom: 1px solid #e8e8e8;
  }

  .carousel-inner img{
    width: 200px;
    height: 260px;
  }

  .myslide{
    width: 70%;
    margin: 0 auto;
  }

  body{
    overflow: auto;
  }

  .centerBox .card{
    margin-left: 10px;
    margin-bottom: 10px;
  }

  </style>

</head>

<body class="text-center">
  <div class="header">
    <nav class="navbar navbar-expand-lg navbar-light bg-light">
      <a class="navbar-brand" href="#">Navbar</a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>
    
      <div class="collapse navbar-collapse" id="navbarSupportedContent">
        <ul class="navbar-nav mr-auto">
          <li class="nav-item active">
            <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#">Link</a>
          </li>
          <li class="nav-item dropdown">
            <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
              Dropdown
            </a>
            <div class="dropdown-menu" aria-labelledby="navbarDropdown">
              <a class="dropdown-item" href="#">Action</a>
              <a class="dropdown-item" href="#">Another action</a>
              <div class="dropdown-divider"></div>
              <a class="dropdown-item" href="#">Something else here</a>
            </div>
          </li>
        </ul>
        <form class="form-inline my-2 my-lg-0">
          <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
          <button class="btn btn-outline-success my-2 my-sm-0" type="submit">😂搜索</button>
        </form>
      </div>
    </nav>
  </div>
  <div style="display: flex;margin: 70px auto;width: 100%;position: absolute;z-index: -1;">


    <div class="leftBox">
      <ul class="nav flex-column nav-pills">
        <li class="nav-item">
          <a class="nav-link" href="#">
            Active
          </a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Link</a>
        </li>
        <li class="nav-item">
          <a class="nav-link active" href="#">Link</a>
        </li>
        <li class="nav-item">
          <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
        </li>
      </ul>
    </div>

    <div class="centerBox">

      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>

      <div class="card shadow-sm" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>


      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>


      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>


      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>


      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>

      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>

      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>

      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>


      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>

      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>

      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>

      <div class="card" style="width: 10rem;">
        <img style="width: 10rem;height: 10rem" src="https://sdosspre1.cnsuning.com/ccus/mccp/buou.jpg" class="card-img-top" alt="...">
        <div class="card-body">
          <h5 class="card-title">Card title</h5>
          <p class="card-text">文森特</p>
          <!-- <a href="#" class="btn btn-primary">即刻查看</a> -->
        </div>
      </div>
      
    </div>
    <!-- <div class="rightBox">

    </div> -->
  </div>
</body>

</html>